Question

balanced and unbalanced forces name period

1. two boys are pushing a box. boy a a force of 1000 newtons on the box. boy b a force of 3000 newtons in the same direction.

draw arrows showing the individual and combined forces of the boys in #1.
b. what is the combined force (net force) on the box?
c are the forces balanced or unbalanced?

1. now suppose that boy a exerts a force of 3000 newtons on the box and boy b exerts a force of 5000 newtons in the opposite direction.

a. draw arrows showing the individual and combined forces of the box in #2.
b. what is the combined force (net force) on the box?
c. are the forces balanced or unbalanced?

1. could there ever be a case when boy a and boy b are both exerting a force on the box but the box doesnt move?

draw arrows showing the individual and combined forces in such a situation.

1. a plane left greenville at 1:00pm in route to las vegas. las vegas is 1000 miles from greenville. if a plane is traveling 200 mph and it has been flying for 4 hrs, how many miles are left before the plane reaches las vegas?
2. what is the speed of a car if it travels 100 miles in 2 hours? how do you make this speed a velocity?

Explanation:

Step1: Calculate the distance the plane has flown

The formula for distance is \(d = vt\), where \(v\) is velocity and \(t\) is time. Given \(v = 200\) mph and \(t = 4\) hours.
\(d=200\times4 = 800\) miles

Step2: Calculate the remaining distance

The total distance is \(D = 1000\) miles. The remaining distance \(r\) is \(r=D - d\)
\(r = 1000-800=200\) miles

Step3: Calculate the speed of the car

The formula for speed is \(s=\frac{d}{t}\). Given \(d = 100\) miles and \(t = 2\) hours.
\(s=\frac{100}{2}=50\) mph

Step4: Convert speed to velocity

Velocity is speed with direction. So, if we specify the direction (e.g., north - east) in which the car is moving, the speed (50 mph) becomes a velocity (50 mph in a particular direction)

Answer:

1. For the plane: 200 miles are left.
2. For the car: The speed is 50 mph. To make it a velocity, specify the direction of motion.